B and A sound the best but as we can only choose one i whould go with B hope this helps
The opportunity cost in this scenario is the three lost opportunities Harry experiences by deciding to go to his parents house. The term opportunity cost refers to <em>the loss of potential gain from other alternatives when one alternative is chosen. </em>The potential gain Harry may have lost by choosing to go to his parents for dinner instead could be <em>relaxation while fishing, His house painting being finished, and time spent with his friends at the birthday party. </em>These all can be considers lost opportunity due to choosing an alternate opportunity, that being dinner at his parents.
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a lack of immunity to certain diseases
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While the idea of using steam power ... engineer James Watt improved the steam engine that it ... For thousands of years following the rise of civilization, most peo- ... in Britain, the Industrial Revolution has spread to the rest of ... began to disappear. ... device. Within a few months, he knew he had a product that would sell.
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